Safety spool-holder for sewing-machines.



S. KR'UGER.

SAFETY SPOOL HOLDER FOR SEWING MACHINES.

APPLICATION FILED SEPT. 14, NM,

Patented June 8, 1915.

gmmssa witnesses SAMUEL KIRK 9F NEVJ Y.

SAFETY SPOOLZ%IQLDFR FOR SEWEN'G-IEACHENEQQ To all whom it may concern Be it known that I, SAMUEL lgnuonn, a citizen of the United States, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Safety Spool Holders -for Sewing Machines, of which the following is a specification, such as will enable those skilled in the art to 10 which it appertains to make and use the same.

This invention relates to holders for the thread spools of sewing machines and the object thereof is to provide an improved device of this class designed for use in manufacturingestablishments, and to prevent the theft of the spools of thread.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms apart, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which I Figure 1 is a sectional view showing my improved spool holder secured to the table of a sewing machine; Fig. 2 a side view of the spool holder detached; Fig.3 a perspective view of a spring arm which I employ, and Fig. 4 a cross section on the line 4-4 of Fig. 2. y

In. the drawing forming part of this specification, I have shown at a the table of a sewing machine, and at b a spool of thread of the class usually employed in manufacturing establishments. In the construction shown, the spool b is without the ordinary end heads but said spool may be provided with the usual end heads if desired.

In the practice of my invention, l have provided a spool holder comprising a standard 0 having a flat base. a which is secured to the table a by screws 0 or in any desired manner.

The standard 0 is provided with a head 0 at the bottom of which is an abrupt annular shoulder 0 this construction being formed .hy cutting out the standard 0 SlICUIRfBIGI'k ,tially from the head 0* downwardly, whereby the body portion of the standard below to the head is tapered as shown at c.

In one side of the spool b is a longitudinal slot 6 at the bottom of which is an L-shaped groove b which communicates therewith, and I also provide a spring. arm cl which is formed to fit in the slot Z2 and is provided at one end with an inwardly directed lug or projection (Z and the opposite e d an t-shaped handle portion adapted to lit in the ln snaped gr The spring arm al is curved the plane thereof and l d in pee:

tion with the part as i and the L'shaped part 5 in tne h-sh groove 35"",

the thread a wound 0 col, will and the t5 hold the sprin arm 03 t ject into the pool and the in or projection pool on said to standard, and said spoel oe taken off arm d will drop out the spool may he with the thread. 6 wound thereon, may be The head 0 or the standard c is'hei 'eled so but when the spool is fully in position, the

as shown in Fig. 1, and lock the spool a spring arm loosely connected with the arm that is thrown into operative position described the construction or the standard, 95

cations thereof may he made, within the sacrificing its advantages.

Letters Patent is 1-- comprising a-standard and a thread spool thereon, said spring being held in operative 11o Lshaped part 1, .rni in the groove 7 a 0* and the end part al or the arm 03 Wlll. pro- (Z with the head oi: the standard to hold s b from the standard until the thread 6 is unwound itroni the spool, when. the spring removed from the standard and another '75 spool with its spring arm in position and passed down over the standard will be readily understood.

on its outer end so'as to permit the passingof the spool downwardly over said standard,

arm 5 or the lug pr projection (5 thereof will catch under the head of the standard 85 thereon.

My invention is not limited to the use of spool, or held in connection therewith, the thread only, and any sort of a sprin by the thread on the spool will answer all. requirements, anol'while l have shown and spool and spring which I prefer, it will be understood that changes therein and modifisoope of the appended claims, without departing from the spirit of my invention or Having fully described my invention what 1 clann as new and desire to secure by 1. A thread. spool holder adapted to be secured to the table ot a sewing machine and provided with a spring which is adapted to engage said standard and to lock the spool position by the thread wound on the spool.

2. A thread spool holder adapted to be secured to the table of a sewing machine and comprising a standard, and a thread spool provided with a spring which is adapted to engage said standard, said spring being held in operative position by the thread wound on the spool; and being released when the thread is unwound from the spool.

3. A thread spool holder adapted to be secured to the table of a sewing machine and comprising a standard on which the spool is loosely mounted, said standard being provided with a part adapted to be engaged by a spring, and a spring mounted in said spool and adapted to engage said part, said spring being held in operative position by the 4 thread wound on said spool.

i. A thread spool comprising a standard provided with a head on which the spool is adapted to be placed, said spool being pro vided with a spring lock device adapted to engage said head and which is held in operative position by the thread wound on the spool.

In testimony that I claim the foregoing as my invention I have signed my name in presence of the subscribing witnesses this 12th day of September, 1914:.

SAMUEL KRUGER.

\Vitnesses:

C. luULREANY,

H. E THOMZPSON. 

